Shingle-strip machine



Aug.v 4, 1925.

E. "LASTREET SHI NGLE STRIP MACHINE File-March 17. 1921 h (s atto/:Mew

2 Sheets-Sheet 1 LBJ " Snom/woz E. T. STREET SHINGLE STRIP MACHINE Filed March 17, 1921 2 Sheets-Sheet 2 Patented Aug. 4, 1925.

Unirse sIA T Es PATENT OFFICE.

EDWARD T. STREET, or JOLIET, ILLINOIS, AssIcfNonA 'ro- THE nUBEnoIn co., n con.

NEW JERSEY.

`sinnemi-serais MACHINE.

. y l I Application filed. March 17, 1921. Serial No. 453,036.

To all whom t may concern:`

Be it known that? I, EDWARD T. STREET, a citizen of the United States, residing at the city of Joliet, in the county of `Will and s State of Illinois, have invented certain new and useful Improvements in Shingle-Strip Machines, of which the following is a speciiication.

This inventionfrelates to a shingle strip Y 1o machine and more particularl to a machiney i 2@ and to deliver and stack the severed strips in such manner that adjacent stacks are formed on different levels so as to be readily accessible and conveniently handled.

The machine comprises a frame carrying a plurality of sets of rolls, wherein the first set consists of a pair of feed rolls, and the second and third sets each consist of a cutting roll and 'a platen or smooth bed roll. The web of prepared roofing material passes 3 from the feed rolls to the second and third sets of rolls successively and is thereby cut into a plurality of shingle strips of the den sired configuration.

A. stacking mechanism is arranged adjacent'to the last pair of rolls. This mechanism consists of series of endless belts which operate to carry the strip from the cutting rolls and to deliver them in stacking receptacles located at diiierent levels at the to delivery end of the machine. The belts are driven to travel at a higher rate of speed than the peripheral speed of the cutting rolls so as to tend to exert av pulling ordrawing action on the strips whereby to l separate'such strips as may not be completely severed in the cutting operation.

The various rolls and other parte are connected by suitable driving mechanism in such manner that the arts are timed to perform 5@ the desired functions in the proper relation. Preferably the knives carried on'the cutting rolls are arranged to cut from below through the back of the web of roofing material, in view of the fact that the front or top 155 surface is generally severed vvwith particles the machine,

vcutting roll, shown in Fig. 3,

of slate or crushed mineral matter, and by cutting from the back there is a tendency to. cause the mineral particles to separate above the cutting ed e, and therebytending to increase the use l life of the cutting edges, over methods or constructions which cut'from above or through the mineral surface of the web".l

, In the accompanying drawings, which illustrate a preferred embodiment of the invention, and wherein similar characters Aof reference indicate corresponding parts in all of the views`d Figure 1 isa conventional side view of Fig. 2 is a plan View, Fig. 3 is a vertical section, on enlarged scale, through the third set of rolls taken on the line 3--3 of Fig. 2,

Fig. 4 is a section through the sccondset of rolls Itakenl on the line 4 4 of Fig. 2, Fig. 5 is a front view of the lower, or

Fig. 6 is a detail sectional view, on the line 6-6 of Fig. 5, of one of the slotting dies carried on said cutting roll, and,

Fig. 7 is a view of one of the completed strips as formed by the machine.

Referring to the drawings, the machine as `shown comprises a frame consisting of a series of standards for supporting the various rolls, belt-carrying pulleys, and shafts, suitably connected together and braced, and of any desired construction.

At one end of the frame are mounted a` pair of feed rolls 1 and 2 between which the web of the roofing material, with the f mineral surfacin upwards, is fed. These rolls, aswe as t e cuttin rolls hereinafter described, are vertically a justable, as usual in such constructions, to permit of regulatin the pressure on the web.

e web passes from the feed rolls to a second 'set of rolls, of which the lower one 3 is preferably a cutting roll, and the upper 100 one 4 va smooth bed or platen roll. The cutting roll is provided with longitudinally extending knives 5 each of which is of the length required to form the ends or' sides aof the completed shingle strip shown in Fig. 7, and they are alternately` positioned in o-set relation, substantially as seen in Fig. a, so that at each. revolution of said rolls a series of staggered slits are formed transversely across the webs, which y v dinally into strips by the cutting rolls next y operated upon.

slits, after; the web has been cut 4longitudescribed, constitute the transversel lines of severance of the completed shingle strips.

The web then passes to a third set of rolls consisting of a cutting roll 6 and' a bed or platen roll 7, rlhe cuttingroll is 'pref- A 'erably' disposed below the bed roll and is provided with knives 8 set circumerentially around the roll in such manner or design as to cut the web longitudinally into a plurality of -stri s each having a succession of uniform -ta s and projections on opposite edges-ofthe configuration of the desired completed "product rlhis cutting roll is also provided, las seen in Figs. 5 and 6,'with dies 9 of suitable 'construction to cut or dieout the slots or 'kerfs c on. the shingle strips at the same time that the longitu slo'tting dies are provided with suitable means, such as the springs 10, for ejecting the. waste. li desired receptacles may be provided to catch the ejected waste material. i

The knives .5 and 8, as well as'the slottingldies 9, are detachably secured to their respective cutting rolls in any suitable manner, as by means of wed 4e blocks,` so that they can be easilyy remove for replacement or sharpening.

As shown inthe drawings, the machine is designed to out six strips across the width of the web and to form said sti-ips. into a succession of completed 'shingle' 'strips each consisting oit four connected shingle units. By changing the' arrangement of the knives 8 the outline of the`units may be varied as desired, and by changing the relationship of the transverse knives 5 with respect to the correlated longitudinal' j endless belts 11, which carry the'strips to different levels asseen in Fig. 1. In other words, certain .of ythese belts, as belts 11x, carry the shingle strips in a substantially l horizontal plane while others, as the b elts 11V, carry Atheirs in an inclined plane. The belts 11- are supported on transverse pulley shafts 12 and 13 which are mounted on uprights of the machine frame and are 'suitablydriven to rotatethe belts at a somel what asterrate' of ,speed `than the peripheral speed, ot' thecutting and feed rolls. i' 'lhe frictional en agement of` the belts with' the underside o the shingle strips, inas- 'operate on much` as thebelts are traveling faster than' the 'cutting rolls, tends to exert a slight longitudinal tension or pulling action on the strips, as they leave the cutting rolls, where- 'by to completely separate' such of the lonitudinallyadjacent strips 'as may' not ave been completely severed in the cutting operation, while atlthe samel time' permitting of sumcient slippage so as not to distort the '-shape of .the completed shingle strips through undue tension. ln view `ot- 'thefact' that Ythe machine is designed to repared roofing' material consisting-ofA `brous fabric satura or "im= 'pregnated with bituminous compositions,

this feature of my invention is oi'consideryable practical importance as in dealing with such materials, which are ot somewhat sticky nature, it is dicult to so completely:

sever the material with cutting knives that the adjacent portions will vnot have a ten-,

dency to stick together along, tlielines'ot f severance. i

A transverse shaft 14 is mountedl above the belts 11 near their 4forward ends Aand carries a series of idler pulleys 15 which are sopositioned thereonin relation to the belts 11V, .as to depress. the alternate strips as they leave the cutting rolls, whereby to coni- 'pletely .separate the later-al edgesot adjacent shingle strips and to guide the'alternate strips' on.l to the inclinm belts '115'.

rl`he belts 11x and 11Y deposit their loads.

ony endless belt conveyors 1t?l and 16W, re

spectively, 4which conveyors travel in`snb\ stantially` parallel' horizontal paths, at dille/rent levels, and serve carry the shingle strips tothe receptacles or inclined pins 17 wherein the .strips laresta'cked.

e conveyors 16 are mountd' on transverse shafts 18` and 19, and they'are suitably driven to .rotate at substantially the same speed as the belts 11r l For convenience,l in handling' the stacks I prefer to arrange the receptacles 17 in the manner shown in Figs. land '2, that is',l

ieu

ies

with one pair in front ot the others and j with the outermost two at a lower level than the intermediate'l'pair. By this ar-' ,rangement of the receptacles, .operators -standing at the sides of the machine can easily reach the stacks of shingle strips formed therein so as to remove the' same.

'Suitable means are provided for driving all of the rotating parts in correct time relation ln the present embodiment these means consist of a main driving shaft 20, A a driving belt 21, and gearing 22 tor operating the feed and cutting rolls; Va belt 23 for driving the carrying-belts 11 ;y and belts 211y and-25 for driving the -conveyors 16x and 16".

lt is to be noted that in the machine shown inthe accompanying drawings both the longitudinal and the tranversey cuts invention as required to form the completed shingle strips are made by rotary knives which operate from below the continuously moving web and cut through the material from the back or under surface. Now as the prepared roofing materials usually employedin the manufacture of such shingles or strips 'are generally -coated on the top surfacewith ne sand, crushed slate, or particles of mineral matter, it will be apparent that the knife edges will cut cleaner and last longer in my improved machine than in the present types of shingle machines whigh Yont from the top directly through the mineral coating.

Various changes and modifications inthe specific details of construction and arrangement of the parts may be made without departing from the spirit or scope of my herein described and claimed.

1. A shingle strip machine comprising means for feeding-a web, a rotary cutting mechanismV for formingy staggered transverse cuts in a web, a second rotary cutting mechanism for cutting the web longitudinally, said mechanisms co-operating to form rows of uniform strip shingles, ref

l ceptacles arranged at dierent levels for stacking the strips of each row, and endless belts for separating the strips and dellvering those of each row in separated condition to the proper receptacle.

2. A shingle strip machine comprising means 'for feeding a web, a rotary cutting mechanism for forming staggered transverse cuts in a web, a second rotary cutting n 3. In a shingle str-ip machine,

' whereby to separate mechanism for cutting the web longitudinally, said mechanisms co-operating to form rows of uniform strip shingles, receptacles arranged at different levels for stacking the strips of each row, and endless belts travelin at higher speed than the web and arrange to engage the strips as they leave the second cutting mechanism and to deliver the strips in separated condition to the proper receptacles.

web feed- 4. In al machine of the character dei scribed, web feeding means, rotary means for cutting the web into rowsv of strips,

and conveyors traveling at higher speed than the web and arranged to,engage the strips as they leave the cutting means the successive strips of eachv row, certain of said conveyors traveling in substantially horizontal paths and others in inclined paths so as to separate the strips of each row from those of the laterally adjacent rows and to deliver the separated strips at different levels.'

i EDWARD T. STREET. 

